Sleek and compact, this booklight opens up to shine with a high-intensity, blue-white LED on your paperback or hardback book. The pivoting light sits atop a short neck extension for an overall 5-inch height, while the large flat clip can also be used to stand the booklight up on a desk or table. Folding to just over 4 1/2 inches, the long-lasting light runs on three AAA batteries (not included) or plugs into your 4-volt AC/DC adapter.